Derrick Vincent Thomas (January 1, 1967 – February 8, 2000), nicknamed D.T., was an American football linebacker and defensive end for the Kansas City Chiefs of the National Football League (NFL). He played his entire 11-year career for the Chiefs after being drafted fourth overall in the 1989 NFL Draft. Thomas, part of the class of 2009 entering the Pro Football Hall of Fame, was a premier football player throughout the 1990s and is considered one of the best pass rushers of all-time. In 1990 against the Seattle Seahawks, he set an NFL record with seven sacks in a single game. On February 8, 2000, Thomas died from a massive blood clot that developed in his paralyzed lower extremities and traveled to his lungs. His paralysis was the result of severe injuries sustained in a car accident weeks earlier.